We are publishing a document sent to the Emperor of Brazil, D. Pedro II, in 1861, denouncing, under a catholic clergyman's point of view, the interferences practiced by James Newell Gordon, superintendent of Saint John d'el Rey Mining Company, Limited (Morro Velho), in the slaves' religious practices and the attritions which happened between Catholicism and Protestantism in this company. Between the lines, however, we can observe that it ends for revealing other important aspects of the world of the work in the English auriferous mining in Minas Gerais, in the second half of the century XIX, as for instance, punishments, prisons, Sunday rest, religious attendance to patients, begging, hierarchy relationships, among others.